Ring cluster-mounting



W. SHEFR RING CLUSTER MOUNTING.

APPLICATION FILED FEB. 25, 1.919.

,1 362,748. Patented Dec. 21,1920. 7

1 INVENTOR ATTORNEY PATENT OFFICE.

WILLIAM SHEFF, OF NEW YORK, N. Y.

RING CLUSTER-MOUNTING.

Specification of Letters Patent.

PatentedDec. 21, 1920.

Application filed February 25, 1919. Serial No. 279,173.

To all whom it may concern:

Be it known that 1, WILLIAM Snnrr, a citizen of the United States, and resident of New York, in the county and State of New York, have invented certain new and useful Improvements in Ring Cluster-Mountings, of which the following is a full, clear, and exact description. I

Among the principal objects which the present invention has in view are: to increase the prominence of one of a group of gems held in the mount; to surround a stone of major importance with a number of stones of minor importance. for increasing the brilliancy of the stone of major importance, and to produce a solid face effect for clusters of the character mentioned.

Drawings.

Figure 1 is a face view of a mounting constructed and arranged in accordance with the present invention.

Fig. 2 is a section of the same, said section being taken as on the line 22 in Fig. 1.

Description.

As seen in the drawings, a single-pieced circular crown 5 is furnished with a hexagonal raised portion 6, portion 6 has a circular central opening 7, the edge of which forms a beveled seat 8, the seat 8 is provided for mounting the major stone or gem, the edge whereof rests on the seat 8.

When the stone or gem has been placed on the seat 8, the stone setter may turn over the inner edge of the hexagonal portion 6 by cutting a groove in the said hexagonal portion which spins the metal over the edge of the stone, but at the same time points out or separates the angle pieces 9 of the hexagonal portion, forming these into brilliant points which augment the brilliancy of the mounting by reflecting light independently of the stones.

The crown 5 has a series of perforations 10, the perforations 10 are beveled to re ceive the small or minor stones or brilliants. When these stones are set, the setter overturns the edge of the metal surrounding the perforations 10 which envelop the edge of the said minor stones. It is preferred to provide one perforation 10 for each of the hexagonal sides of the hexagonal portion 6: also it is preferred that the inner edge of each perforation shall juxtapose as closely as possible the adjacent side of the hexago-' nal portion. The result of this is that the inner edge of each of the smaller stones lines with, or laps under the outer edge of the major stone. As a concomitant of this arrangement, the mounting when set with stones and seen from the face, gives the appearance of a solid stone. This appearance is generally augmented by making the crown 5 from aluminum or other suitable or white metal. Other colors of metal may be employed with other stones or gems when needed.

When manufacturing the crowns for the cluster, the preferred method is to press the same in suitable dies. It will be noted that the dies lift the hexagonal portion from the surface of the crown 5 and impart thereto sharp angles or edges, which serve in turn 1 to reflect light, thereby augmenting the brilliancy of the mounting.

Olaims.

1. As an article of manufacture, a cluster mounting having a dome crown," the said crown having a polygonal portion raised above the surface immediately adjacent thereto, said polygonal portion being integral with said crown, and said crown being further provided with a series of circular perforations surrounding said polygonal portion and corresponding in number with the number of sides of said polygonal portion, said perforations being arranged so that the angles of the polygonal portion are in line with the interspaces of said perforations.

2. As an article of manufacture, a cluster mounting having a circular crown, said crown being provided with a central hexagonal portion raised above the surface immediately adjacent thereto, said hexagonal portion being centrally perforated, the edge of said perforation approximating the outer edge of said hexagonal portion.

WILLIAM SHEFF. 

